Zeppelin can let users write Java code?

[Yi Lyu]

hi Team
    In our company, there are a lot of Java engineers, they are not good at 
Scala, may I ask, Zeppelin can let users write Java code, and then run them? 
Currently, I have tried Scala, Python, and can run it.
    and, Is there a plan to develop Java Interpreter ? 
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 Yi Lyu